论文标题
使用多模式相干状态的基于真空的量子随机数发生器
Vacuum-based quantum random number generator using multi-mode coherent states
论文作者
论文摘要
我们基于真空波动测量值提供了光学量子随机数发生器，该测量使用了强烈的光载体的电流相调制产生的多模式相干状态。在这种方法中，弱相干多模式状态（或真空状态）干扰了载体，该载体在每个侧模式下充当局部振荡器。提出的设置可以通过控制电流相调制器的调制指数有效地补偿平衡探测器的两个臂之间的偏差。我们执行原则证明实验，并证明以400 mbit/s的速率实时随机提取的随机数生成。
We present an optical quantum random number generator based on vacuum fluctuation measurements that uses multi-mode coherent states generated by electro-optical phase modulation of an intense optical carrier. In this approach the weak coherent multi-mode state (or a vacuum state) interferes with the carrier, which acts as a local oscillator, on each side mode independently. The proposed setup can effectively compensate for deviations between the two arms of a balanced detector by controlling the modulation index of the electro-optical phase modulator. We perform a proof-of-principle experiment and demonstrate random number generation with a possibility of real-time randomness extraction at the rate of 400 Mbit/s.
